return code; \
} while(0);
-/* internal usb_close wrapper -> sets usb dev handle to NULL */
-int usb_close_intl (struct ftdi_context *ftdi)
+/**
+ Internal function to close usb device pointer.
+ Sets ftdi->usb_dev to NULL.
+ \internal
+
+ \param ftdi pointer to ftdi_context
+
+ \retval zero if all is fine, otherwise error code from usb_close()
+*/
+static int ftdi_usb_close_internal (struct ftdi_context *ftdi)
{
int ret = 0;
- if (ftdi->usb_dev != NULL)
+ if (ftdi->usb_dev)
{
ret = usb_close (ftdi->usb_dev);
ftdi->usb_dev = NULL;
}
+
return ret;
}
*/
void ftdi_deinit(struct ftdi_context *ftdi)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
if (ftdi->async_usb_buffer != NULL)
{
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iManufacturer, manufacturer, mnf_len) <= 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-7, usb_strerror());
}
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iProduct, description, desc_len) <= 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-8, usb_strerror());
}
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iSerialNumber, serial, serial_len) <= 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-9, usb_strerror());
}
}
- if (usb_close_intl (ftdi) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, usb_strerror());
return 0;
usb_set_configuration(ftdi->usb_dev, dev->config[0].bConfigurationValue) &&
errno != EBUSY)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
if (usb_claim_interface(ftdi->usb_dev, ftdi->interface) != 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
if (detach_errno == EPERM)
{
ftdi_error_return(-8, "inappropriate permissions on device!");
if (ftdi_usb_reset (ftdi) != 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-6, "ftdi_usb_reset failed");
}
if (ftdi_set_baudrate (ftdi, 9600) != 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-7, "set baudrate failed");
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iProduct, string, sizeof(string)) <= 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-8, "unable to fetch product description");
}
if (strncmp(string, description, sizeof(string)) != 0)
{
- if (usb_close_intl (ftdi) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
continue;
}
{
if (usb_get_string_simple(ftdi->usb_dev, dev->descriptor.iSerialNumber, string, sizeof(string)) <= 0)
{
- usb_close_intl (ftdi);
+ ftdi_usb_close_internal (ftdi);
ftdi_error_return(-9, "unable to fetch serial number");
}
if (strncmp(string, serial, sizeof(string)) != 0)
{
- if (usb_close_intl (ftdi) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
continue;
}
}
- if (usb_close_intl (ftdi) != 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
ftdi_error_return(-10, "unable to close device");
return ftdi_usb_open_dev(ftdi, dev);
return 0;
}
+
+
/**
Closes the ftdi device. Call ftdi_deinit() if you're cleaning up.
if (usb_release_interface(ftdi->usb_dev, ftdi->interface) != 0)
rtn = -1;
- if (usb_close_intl (ftdi)!= 0)
+ if (ftdi_usb_close_internal (ftdi) != 0)
rtn = -2;
return rtn;